کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11005919 | 1497832 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A LiPO2F2/LiFSI dual-salt electrolyte enabled stable cycling of lithium metal batteries
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A LiPO2F2/LiFSI dual-salt electrolyte enabled stable cycling of lithium metal batteries A LiPO2F2/LiFSI dual-salt electrolyte enabled stable cycling of lithium metal batteries](/preview/png/11005919.png)
چکیده انگلیسی
Metallic lithium, with super high theoretical specific capacity, enjoys great potential as an anode for rechargeable batteries. However, safety issues caused by lithium dendrite growth as well as limited cycling life restrict its practical application. Herein we validate that the application of a new dual-salt electrolyte composed of Lithium difluorophosphate (LiPO2F2) and lithium bis(fluorosulfony)imide (LiFSI) in the same proportion enables the improved long-term cycling performance along with high coulombic efficiency for lithium metal batteries. With 1â¯M LiPO2F2 and 1â¯M LiFSI in 1,2-dimethoxyethane as the electrolyte, a Li/Cu cell can be cycled at 1â¯mA for more than 300 cycles with a deposited capacity of 1.0â¯mAh. It also displays that a homogeneous and dendrite free solid electrolyte interphase layer is generated on the Cu electrode, which can be ascribed to the favorable stability of LiPO2F2 and high ionic conductivity of LiFSI. These results deliver perceptions for the advancement of high-performance lithium metal anode.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 400, 1 October 2018, Pages 449-456
Journal: Journal of Power Sources - Volume 400, 1 October 2018, Pages 449-456
نویسندگان
Ning Dong, Guanghua Yang, Hao Luo, Hewei Xu, Yonggao Xia, Zhaoping Liu,